Double-logarithmic double-differentiation time-to-crash detector: a concept

Alexander I. Krymsky; Guy Meynants

doi:10.1117/12.243534

26 June 1996 Double-logarithmic double-differentiation time-to-crash detector: a concept

Alexander I. Krymsky, Guy Meynants

Proceedings Volume 2745, Infrared Readout Electronics III; (1996) https://doi.org/10.1117/12.243534
Event: Aerospace/Defense Sensing and Controls, 1996, Orlando, FL, United States

Abstract

Limitations inherent to the linear optical field assumption are discussed. A modified time-to-crash detector conception is proposed. The main features of our approach are a logarithmic compression of image in space, differentiation of the logarithm of light intensity in space and time, detecting local expansion using a nearest-neighbor logical circuitry, and an automatic choosing of the contour for the time-to-crash estimation. Keywords: optical flow, smart sensor, CMOS image sensor, motion sensor

Citation Download Citation

Alexander I. Krymsky and Guy Meynants "Double-logarithmic double-differentiation time-to-crash detector: a concept", Proc. SPIE 2745, Infrared Readout Electronics III, (26 June 1996); https://doi.org/10.1117/12.243534

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